He Was born January 28, 1940 is a Mexican business magnate, philanthropist and the chairman and CEO of Telmex, América Móvil. His extensive holdings in a considerable number of Mexican companies through his conglomerate, Grupo Carso, SA de CV, amassed interests in the fields of communications, technology, retailing, and finance.As of April 2010, he is the wealthiest person in the world with a net worth of around US$60.6 billion.

No 2 Richest Person 2011

Bill Gates: $53 billion Microsoft, U.S.

He Was born October 28, 1955 is an American business magnate, philanthropist, author and chairman of Microsoft, the software company he founded with Paul Allen. He is consistently ranked among the world's wealthiest people and was the wealthiest overall from 1995 to 2009, excluding 2008, when he was ranked third. During his career at Microsoft, Gates held the positions of CEO and chief software architect, and remains the largest individual shareholder with more than 8 percent of the common stock. He has also authored or co-authored several books.

No 3. Richest Person 2011

Warren Buffett: $47 billion – Investments, U.S.

He was born August 30, 1930 is an American investor, industrialist and philanthropist. He is widely regarded as one of the most successful investors in the world. Often called the "legendary investor, Warren Buffett", he is the primary shareholder, chairman and CEO of Berkshire Hathaway. He is consistently ranked among the world's wealthiest people. He was ranked as the world's second wealthiest person in 2009 and is currently the third wealthiest person in the world as of 2010.

No 4. Richest Person 2011

Mukesh Ambani: $29 billion- Petrochem, oil and gas. India.

He was born on 19 April 1957 is an Indian business magnate and the chairman and managing director of Reliance Industries, the largest private sector enterprise in India, a Fortune 500 company, and one of the largest private sector conglomerates in the world. His personal stake in Reliance Industries is 48%.

As of July 2010, he is the richest man in Asia and the fourth richest man in the world with a personal wealth of US$29.0 billion. On 29 October 2007, a strong rally in the Indian stock market and the appreciation of the Indian rupee boosted the market capitalisation of all Reliance group companies, making him for a while the world’s richest man, with net worth climbing to US$63.2 billion leaving Bill Gates behind at around $56 billion. According to Forbes Magazine forecasts, he is expected to regain the title of the richest man in the world in 2014

No 5. Richest Person 2011

Lakshmi Mittal:$28.7 billion – Steel, India.

Lakshmi Nivas Mittal (Rajasthani: 15 June 1950) an Indian national, steel tycoon and the chairman and chief executive officer of ArcelorMittal, the world’s largest steelmaking company.

As of July 2010, Mittal is the richest man in Europe and the fifth richest in the world with a personal wealth of US$28.7 billion or £19.3 billion. The Financial Times named Mittal Person of the Year in 2006. In May 2007, he was named one of the "100 Most Influential People" by Time magazine.

He is a board council member of the Prime Minister of India's Global Advisory Council of Overseas Indians. He serves as a non-executive director of Goldman Sachs, EADS and ICICI Bank and is presently the vice chairman of the World Steel Association. Mittal is a member of the Foreign Investment Council in Kazakhstan, the International Investment Council in South Africa, the World Economic Forum’s International Business Council and the International Iron and Steel Institute’s Executive Committee. He is a member in the Advisory Board of the Kellogg School of Management and is part of St. Xavier's College, Calcutta Alumni Association, London Chapter.

No 6. Richest Person 2011

Lawrence Ellison:$28 billion – Oracle, U.S.

Lawrence Joseph "Larry" Ellison (born August 17, 1944) is an American business magnate, co-founder and chief executive officer of Oracle Corporation, a major enterprise software company. As of 2010 he is the sixth richest person in the world, with a personal wealth of $27 billion.

No 7. Richest Person 2011

Bernard Arnault:$27.5 billion Luxury goods, France.

Bernard Arnault (born 5 March 1949) is a French businessman. He is the founder, chairman, and CEO of LVMH, a large luxury goods conglomerate consisting of over fifty luxury brands, including Louis Vuitton, Dior, and Fendi. According to Forbes Magazine, Arnault is the world's 7th richest person, with a 2010 net worth of $US27.5 billion.

No 8. Richest Person 2011

Eike Batista: $27 billion

Eike Fuhrken Batista, more commonly Eike Batista or simply Eike (Governador Valadares, November 3, 1957), is a Brazilian business baron. He has founded companies in different business sectors, mainly in mining. He is the son of Eliezer Batista da Silva, a longtime head of mining company Vale. As of 2010, he is the eighth richest person in the world.

No 9. Richest Person 2011

Amancio Ortega:$25 billion Fashion retail, Spain.

Amancio Ortega Gaona, best known as Amancio Ortega, was born on March 28, 1936 in Leon, Spain. His father worked on the railroad while his mother helped support the family by working as a maid. At the age of 13, Ortega began working for a shirtmaker as a delivery boy in La Coruna, Galicia, the center of the Iberian textile industry. He worked for a variety of stores and tailors and studied how products and costs changed as they traveled from the manufacturer to the consumer. As a result, he became focused on the importance of getting products directly to the consumer without a middle man.

No 10. Richest Person 2011

Karl Albrecht: $23.5 billion Supermarkets, Germany.

Karl Hans Albrecht (born 20 February 1920) is a German entrepreneur who founded the discount supermarket chain Aldi with his brother Theo. He is among the richest men in the world, with an estimated net worth in 2010 of $23.5 billion according to Forbes, which ranks him 10th in its 2010 world rich list.[1] Albrecht is the wealthiest man in Germany.